A chocolate sponge topped with a milk chocolate icing feathered with white chocolate makes this a great cake to share for a birthday party for the young as they love milk chocolate. Decorate it as you like - try topping it with sweets, chopped chocolate bars, marshmallows or lots and lots of candles! If it’s for a more sophisticated occasion use about 40% cocoa solids dark chocolate. Equipment and preparation: you will need a small piping bag and a 30x23cm/12x9in traybake tin greased an...